1. Department of Periodontology, Institute of Odontology The Sahlgrenska Academy at University of Gothenburg Gothenburg Sweden
2. Clinic of Periodontics, Public Dental Service Region Västra Götaland Gothenburg Sweden
3. Clínica Ortiz‐Vigón PerioCentrum Bilbao Spain
4. ETEP Research Group, Faculty of Odontology University Complutense of Madrid Madrid Spain
5. Private practice Clinica Guerrero Marbella Spain
6. Department of Neuroscience, Faculty of Odontology University of Padua Padua Italy
7. Department CIBIO University of Trento Trento Italy
8. Private practice Planegg Germany